Igneous rock fracture prediction with well logging and seismic data
Huang Handong1,3, Liu Xumin1,2, Cai Yanjie4, Zhang Sheng1, Wang Yanchao1,3, Zhang Yintao5
1. College of Enhance Oil Recovery, China University of Petroleum (Beijing), Beijing 102249, China;
2. Research Institute, Shenzhen Branch, CNOOC, Shenzhen, Guangzhou, Guangdong 510240, China;
3. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China;
4. Gudao Oil Production Plant, Shengli Oilfield Branch Co., SINOPIC, Dongying, Shandong 257231, China;
5. Research Institute of Petroleum Exploration and Development, Tarim Oilfield Company Ltd., PetroChina, Korla, Xinjiang 841000, China
Abstract：Fracture reservoir has attributes of strong heterogeneity and complex distribution, well logging or seismic method cannot be used alone to effectively predict fracture distribution. Thus, a new comprehensive fracture prediction method with both well logging and seismic data is presented in this paper, which contains three parts: ① Analyze well logging-based and seismic-based methods' characteristics for fracture prediction; ② Rank fractures predicted on well logging data by drilling cores crack; ③ Calibrate seismic data with logging information and fit well logging fracture probability and seismic facture intensity. This method can improve not only fracture prediction reliability and also fracture identification in ③D seismic data volume. The proposed method achieves good results in Mesozoic igneous reservoir identification in Fulin Sag, Shengli Oilfield.
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